This character is never on screen in the archive. The name is known because other players had them on their VIP list, they exchanged private messages with a recorder and they spoke where a recorder could hear it: evidence that Maester Spout existed, and roughly when, but there is no footage of them to watch in these recordings.
Named, never on screen 7
Maester Spout is not visible in these recordings. Each one lists the name on a VIP list or in chat, which shows the character was around at the time.